Improvement in paper-bag machines



7 Sheets-Sheet 1.

o. W. ALLISON. Paper-Bag Machine.

No. 207,702. Patented Sept. 3, 1878.`

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INVENTOR WITN ESSES @ZM W ATTOR N EYS N-PETERS. PHOTO-LITHOGRAPNER. WASHINGTON. D. C.

'Z Sheets-Sheet 2.

0. W. ALLISON. Paper-Bag Machine.

Patented Sept. 3, 1878.

' WITNEssEe I e@ W INVENTOR MMMeFE-s 7 Sheets-Sheet 3l 0- W. ALLIsoN.

` E? I NVENTOR N4 PETERS. PHOTOL|TMOGRAPMER. WASHINGTON. D L.

o. W. ALLISON. Paper-Bag Machine.

No. 207,702. Patented Sept. 3,1878. v

7 'Sheets-Sheet 6.

0. W. ALLISON. Paper-Bag Machine.

Patented Se'pt.. 3, 1878.

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UNITED STATES PATENT OFFICE.

OSCAR IV. ALLISON, OF CLEVELAND, OHIO.

IMPROVEMENT IN PAPER-BAG MACHINES.

Specification forming part of Letters Patent No. 207,702, dated September 3, 1878; application filed April 9, 1878.

To all whom #may concern:

Be it knownnthat I, OSCAR lV. ALLISON, of Cleveland, in f the county of Cuyahoga and State of Ohio, have invented certain new andv useful Improvements in Machinery for Making Paper Bags; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification. Y

My invention relates to an improved paperbag machine, and particularly to that class of machines that produce the so-called satcheibottom paper bags.

My invention consists in new and improved mechanism for forming the tube, folding and pasting the bottom, and, when completed, delivering the bags from the machine.

In the drawings, Figure 1 is an isometric Vview of my invention; Fig. 2, a partial side elevation, and Fig. 3 a partial plan view, of the same. Fig. 4 is a view, inside elevation, of the former,7 with the drum in section. Fig. 5 is a partial elevation of the delivery end of my invention. Fig. 6 is a detached view, showing the workings of the nippers. Fig. 6 is a view, in cross-section, on line x :v of Fig. 6; Fig. 7, detached view, showing the nippers Fig. 7 is a View, in side elevation, of the nipper r1. Fig. 71 shows the nippers r3 and i" in edge view. Fig. 7 represents the communication-rod r6 in full side elevation, and also in side elevation, part section. Fig. 7Ll represents the guide r9 in side view, edge view, and cross-sectional view. Fig. '7e represents the nipper r2 in different views; Fig. 8, detached views of feed-rolls, with rubber or gutta-percha sleeves E E Figs. 9 and 10, detached views, showing elevation and plan of the folders for making the first fold; Fig. 11, detached view, showing elevation ot' device for making the second or last folds of the bottom; Fig. 13, a detached view of the stationary drum, to which the former is attached, Fig. 12, sectional view of drum, showing the internal mechanism by which the har or tongue isA operated; Figs. 14, 15, and 16, views of the bag in different stages in the operation of making the bottom; Fig. 17, Sheet 2, a cam that is attached to the large wheel and serves to open the nippers. Fig. 18 is a plan view of the system of endless belts. Fig. lfh is a longitudinal sectional view of the same.

A is a frame, suitable in form and material to accommodate the various parts of my device and their operation. B B are large wheels, permanently attached to the shaft B', and between which the heads or ears are suspended that carry the mechanism by which the bottom of the bag is made. C is the former by which the tube is shaped. This former gradually-increases in width as it approaches the feed-'rolls F and F1. E represents the roll of paper, of the proper width to make any sized bag desired. F and Fl are the main feedrolls, by which the paper is drawn from the roll E around the former C and fed to the machine. F2 is a spring tension-rod, which takes up the slack of the paper between the feedrolls Fand Fl and the car ory head I, Fig. 11. F3, F4, and F5, Figs. 2 and 3, are gear-wheels, connecting the pinion on the main feed-roll F with the main shaft B. Cr is a serrated cuttin g-knife, which severs the paper from the roll.

L and Ll, Fig. 2, are, collectively, what are called. slitters.7 L yL are blank wheels, against which the lower cutter-wheels, L L1, are made to revolve, thereby cutting, at the proper time, two slits in the paper tube, which are afterward used in the formation of the bottom. L L are permanently attached to the rock-shaft L, and Ll Ll are permanently attached to permanent shaft L4. Rock-shaft L3 is provided with crank-arm l, which is adapted to engage with cam L2, formed on rotating shaft C4. It is provided with suitable spring mechanism, which causes it to rise automatically from the former C immediately upon the release of its crank-arm from engagement with said cam L2.

H and H1 is the gearing by which the head or car is made to revolve by meshing into the segmental gearing H2. H2 is a lock, firmly attached to the large wheel B which carries, the head or car I and the gearing H and Hl. Hl and H2 lock the bar K.

I is the head or car, suspended between the large wheels B B, which contains the mechanism for making the-'bottom folds. K, Fig. 11, is an upper bar, which, wit-h K', the lower bar,

lFig. 5, to the shaft O3.

band-wheel Ol2 to the pulley Olf.

holds the paper firmly, and draws it overthe serrated knife G. While held by these bars the bottom of the bag is formed, pasted, Vand folded. The arm c, Figs. 12 and 13, is loosely attached to the shaft C2 within the drum Cl, and is also connected with the movable'bar c3. C5 and G5 are beveled gearing, connecting the shaft B with sha-ft Cz by shaft C4. Gearing G5 and G5 is two to one, so that the arm c performs two operations` at each revolution of the shaft B-in other words, it should be so constructed that it will perform the same number of operations at each revolution of the large wheels B B as the large wheels B B have cars or heads I.

In the drawings I have only shown one of these ears or heads, for reason of convenience in exhibiting the construction of the same 5 but instead of a single one, two or more of them might'be employed, the same depending upon the size of the bag to be made, in

connection with the diameters of the wheels B and B.

cl is an arm permanently attached to the shaft G2. On this arm cl is a pin or stop, c4.

'When this arm cl is revolved in the directionV indicated, Fig. 18, 1the pin o4, on pivoted arm el, strikes the arm c, carrying it, with the bar y c3, forward untill it meets the head I in its revolution. lThe pin el, coming in contact with the stop c5, disconnects the .arm c, whenit is carried back, drawing the bar c3 by a coiled spring, c5, Fig. 12, attached to the ordinary drum Gl( l M, Fig. 3, is a shaft, to which is permanently attached the pastelwheels M2. Ml is the paste-box, through which the paste-wheels M2 revolve. M3, Fig. 5, is a lock on the shaft M, which holds, by contact with the notch M4 on the wheel B, the paste-wheel M2 in position, so that the gear M5 on theI lshaft M will mesh into the segmental gear M6 as it is reached'in the revolution of the wheel B. rlhe object of this is to carry the paste from the box M1 to the bottom of the bag at the Aproper time to secure thev bottom folds.

A' is a curved wire arch, located about centrally between the two wheels B and B', and is of form, as shown, adapted to cause the nipper-bars It and B to separate as the same come in contact therewith. y

F5, Figs. 2, 3, and 5, is a gear attached to the shaft O. Ol is a crank keyed upon the shaft O. O4 is a pin on the crank O1, which moves in a slot in the arm O2 and is keyed onto the shaft O5. The shaft O3 is supported by thebrackets O5. The gear F6 meshes into the gear F5. The arm O6 is permanently attached to the shaft O3. O7 is an arm permanently attached to t-he shaft O8.

O8, Fig. 18, is a shaft, attached by arms O5,

i Ol0 and Oll are bandwheels, attached to the end of the arms O7 and O12 and 03 are band-wheels on the shafts O3 and O5. Oll and O15 are endless belts, passing around the band-wheel Olo and under the Ol'S (not Vameter as fl, and meshes intofl.

when the same is raised or lowered.

shown) and Ol? are two endless belts, that pass around Oll and under Om. These belts receive motion from the pulley Olli. O18 (not shown) and Oll are driving-pulleys, running in opposite directions. Y

In Fig. 9, aa are folding-ngers, attached to sleeves al al by a hinge, a?. The sleeves al al slide upon the bar K. l b3 is a sliding bar, operating within the hollow bar K'. It has a rack, f2, cut in its center to match the gearwheel fl. f3 is a gear-wheel, of the same di- Gear-wheels f l and f3 are permanently attached to and receive their motion from the shafts ff. v e and e are cranks mounted on the shafts f f. d and d are connecting-rods, connecting the cranks c and e with the sliding sleeves al a'. g is a center-piece, made secure to the center of the bar K. It serves to hold the gearfl and f3 in the rack f2 as the bar b3 is moved. The bar b3 is made to slide within the bar K by its contactwith .cam-7L, attached to the frame A, which operates to close the fingers a a as the large wheel B is made to revolve. The bar b3 comes in cont-act .with the .cam h', which forces back the bar b3 and opens the fingers a a. i

b and bl. are levers-attached to the fingers a a, and, by coming in contact with stops Iii-and yb5 on the casting or center-piece g, operate to y allows them to lie close to the head I, by which means they are drawn away from the bag after the two last folds are made.

b5 is a spring, that holds the fingers in-position whether open or shut. made secure to the casting g. It serve's the double purpose of strengthening the head and actingas a guide to the paper.

In Fig. 11,'7' and j are folders, hinged at k and mounted 'on the face of the head or car. They make the .two last folds.

kl and k2 are shafts, connected Vwith the folders j and j by the cranks k3. The coarse gear 7a4 on the end of the shaft K meshes into the stationary rack ka, Fig. 5, thereby turning the folder j.

k5 is coarse gear, secured to coarse gear l, both mounted loosely on Abar K. Gear k meshes into gear k7. icl is permanently attached to shaft k2. `h5 is engaged with rack mechanism which turns the folder j.

lforce back the folders after the fold is complete.

In Fig. 11,.thelinks n and nl are secured firmly to the bar K', and act as guides to the bar K The bar Je? isheld in position by bearings-onthe cen ter-piece g and link u.. The shaft kl is heldv in position by the bearings n2, secured to the bar k.

In Fig. 6, R is the bar supporting the upper nippers, r and rl, B performing the same b7 is an apron,

office for the lower 'nippers, T2 and-T3.V The sleeve T", Fig. 7, is loosely attached to the upper nipper-bar, 1t,`Fig. 6, with the nipper T secured toit at one end. At the other end of the sleeve T4 is a crank, T5. Y

The connection-rod T6 connects one end of the crank T1 with the link nl. Y

The connection-rod T5, as shown in Fig. 7, has a coil-sprin g about it, to allow it to shorten Vor lengthen, as circumstances require.

T9 is a guide,moving through the nipper T2 and worked by the lever T", which is connected with the link n by the bar T2, so that when the nipper T1 is placed in position the oice of T9 is to guide thenippers T and T2 inside of the paper tube. As the large wheels B B revolve the guides are drawn back out of the way by Y the bar T8 and lever T7. The bar T8 is connected with the link u at the point s3.

In Fig. 6, a is a gear attaehedlooselyto the .bar K. u1 is a gear attached to a sleeve, o.

Sleeve 'v is'attached to the link n1.- The arms a3 and segmental gear u are firmly united, or ma-y be cast in one piece. The arm u2 and gear alare vunited in the same manner. YThe arm a3 has two lugs upon it-u4 and a5, Fig. 6*. 'lhese lugs straddle the nipper-bar R. u2 has two lugsupon it-u and ttl-which straddle the Dipper-bar R.

u8 is a hub on the arm u2. As the head or car revolves, the hub u comes in contact with the caln u, Fig. 17, which cam is eccentric with the center of the bar K', and causes the nippers to open and the points tand t1 to move to the points t and t2.

The nipper-bar R', moving upon its axle s,

Y and the connection-rod T6 connecting the crank .the tin gers a a.

Having thus described the construction of the machine, its operation of making a paper bag and delivering it from the machine is as follows: The roll of paper, of yproper width to make the sized bag desired and of indefinite f length, yhaving been placed upon the roller, as

shown at E, Fig. 1, and suspended so as to be unwound and supplied to the machine as fast as required, the end of the paper is drawn over the roller D. At or near the roller D the paste is applied, in any suitable manner, to one of the outerfedges of the paper, for the purpose afterward of uniting the two edges of the paper vand making the tube from which the bags are cut. From thence the paper is passed under the former C. The paper is broken or creased 4on the former at the point of contact of the former C with the drum C1. The paper is then passed along under the former C, at the same time folding over it, forming a tube. It next passes'to the slitters L and L1. These slitters, by the action of the cam L2 upon a lever at the end of the shaft to which the slitters L are attached, cut the paper tube longitudinally for a short distance, as shown in Fig. 14:, the distance having been previously determined and the slitters properly adjusted. At the .proper time the slitters L are raised from the paper by the cam L2, and the tube permitted to pass freely to the rolls F and F1, where the side seam is set. The rolls F and FI also act as the main feed-rolls of the machine, to draw the paper from its original roll E and feed it to the heads or cars as they reach in their revolution the point opposite the rolls F and F'. On the upper roll, F1, are two rubber or guttapercha sleeves, or their equivalent, permanently attached, as shown in Fig. 8. rllie ot'- fce of these sleeves is to draw the paper around the former C. These sleeves, as shown, are made conical or conoidal in shape, with their bases toward the center of the roll, and only separated sufliciently to admit the passage ot' the bar G3. The rubber or gutta-percha cones, above described, at their apex ends are lof the same diameter as the pitch-line of the gear x2, where the two rolls F and F1 are geared together. The object of these sleeves is to draw the paper toward the center of the former. The rubbersleeves, being larger at the center or at their base than the rolls themselves, constantly draw the paper firmly about the former and toward the center. This keeps the paper smooth at its outer edges, which cannot be done successfully unless some device of this kind is provided to draw the paper forward securely at the center of the tube. I prefer for this purpose the rubber sleeve described to any other known device.

The tube, now having been formed and pastedpasses overthe serrated knife G and the spring tension-rod F2, which now lies beneath the knife, into the head or car I. At this time the crank c1, mounted on the shaft C2, is turned in the direction indicated by the arrow, Fig. 13, and, bringing the pin c4 in contact with the arm c, forces the same forward, carrying with it the bar c2, to which it is attached. The bar e2 being within the paper tube is forced forward, as described, until it meets the guide T9, Figs. 6 and 7, to which it guides the paper tube. The bar is then drawn back by its arm to its iirst position. The guide T2, inside of the tube, carries it to the tin gers T and T2. Both fingers are now inside of the tube, and the finger TI is above and outside of the tube, and finger T3 below and outside of the tube. A sufficient length of tube to form the bottom ofthe bag now having passedrinto the car or head, the bar K runs oit' the cam x4, Fig. 1, and closes down upon the tube. At the same time the bar b3 comes in contact with the lever .Tt-5, which trips the spring tension-rod F2, which takes up the slack of the paper between the car and the rolls F and F1. The rod F2 automatically makes the described movement by reason of a suitable spring tension device, Z', with which it is provided, and which serves to throw said rod up, as soon as it is permitted to do so, by means of the engagement of bar b3 with said lever x5. The head or car traveling between the wheels B B in the direction indicated meshes the gear Hl into the segmental gear H2, and causes the head or car to perform three-fourths of a revolution, throwing the face of the head on the are of a circle. Vhile performing this threequarter revolution the end of the bar K turns into the cam ug, Fig. 17, Sheet 2, and holds the paper securely until the bottom is made and pasted, and the bag, now traveling toward the endless belts, severed from the tube following. At the same time the pin v8 on the arm v2 comes in contact with the cam a9, which is attached to the wheel B, and causes the nip per-bars R and It to open and the points t and t1 to move to the points t4 and t2, as shown in Fig. 6. While the points are being passed, as described, the nippers r2 and r3 close onto the paper at the point 85 on the lower part of the tube, and the nippers r and r1 close onto the upper part of the tube at the corresponding point, and Vdraw the first fold of the bottom open, while the ngers a, t are brought down onto the paper. When the point t passes the point s it loosens its hold of the paper and allows the flaps j and j to draw the paper out of the fingers r, rl, r2, and r3.

The lingers a a are brought down onto the paper by means of the bar b3, within the bar kl, coming in contact with the cam ha, attached to the frame A. While the head or ear is traveling as described the paper isdrawn over the serrated knife Gr, and at the same time the spring tension-rod FZ is brought down under the knife G, and remains there until tripped again by the next lock.

The operation of the tension-rod striking the paper in its passage to a point under the knife Gr severs the bag from the tube following, and the tube is fed, as before described, to the next head or car. The car revolving, as indicated, brings the segmental gear M6 in contact with the gear-wheel M5, and turns the pasterolls at the proper time to apply the paste to secure the folds of the bottom of the bag. After passing the paste-roll the lock M3, by contact with the flange on the wheel B, holds the paste-roll inposition until the head or ear following reaches it. As the head or ear is passing, the coarse gear i# on the shaft k1 meshes into the segmental gear 7c, which is attached to the frame A. This forces the flap j against the nger a, with thc paper between them. This turns one side of the bottom fold. The coarse gear kf is attached to the gear-wheel k6 loosely on the shaft k1. The gear-wheel k6 meshes into the gear-wheel k7 on the shaft k2. 705 engages with rack mechanism and turns the flap j against the finger a. This makes the last fold of the bottom. The flaps j and j are drawn back by springs on their shafts k1 and k2. The bar b3 comes in contact with the cam h',

and, being forced back, draws the fingers from the bag and opens them.

When the gear-wheel Hl, Fig. 2, engages with the segmental gear H2 it turns the head one-fourth the way around in the same direction it already hasbeen turned three-fourths the way, thereby completing its revolution. This last operation also turns the bar K out ofthe cam a9, and loosens the bag from the head or-ear, and delivers it between the endless belts 014 and O15 and belts OI6 and 0, Fig. 18, which draw the bag from the head, and the head or ear returns to the rolls F and F1, prepared to receive the tube and continue the operation as long as supplied with paper.

Although I show but one head or car in the drawings for the sake of better illustration of the invention, yet in use I prefer to employ two of said heads or cars; however, as before indicated, any number, greater or less than two, may be used.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The combination, with the slitted former G and the cutterwheels L1, located below the same, of the blank-wheels L, located above the former C, and adapted, substantially as shown, to be interlnittently brought in contact with said cutter-wheels, substantially as set forth.

2. The combination, with rock-shaft L, pro` vided with a spring tensiondevice and crankarm, together with cam L2, formed in rotating shaft U4, of the blank wheels L, indirectly supported on said rock-shaft, slitted former C, and cutter-wheels Ll, located below the latter, substantially as set forth.

3. The combination, with the former C, of the stationary drum C1 and the bar e3, which latter is adapted, substantially as shown, to have longitudinal reciprocating movement in and out of said drum, substantially as set forth.

4. The combination, with the former C and the stationary drum C1, having an opening therein, of the iiexible spring-bar c, which passes through said drum-opening, substantially as set forth.

5. The combination, with the former C, having loop-guides on its upper surface, and the stationary drum C1, having an opening therein, ofthe flexible spring-bar c3, which passes through said drumopening, and is adapted, substantially as shown, to have movement in the said loop-guides of the former, substantially as set forth.

6. The combination, with rotating shaft C5, havin garm c1, rigidly secured thereto, and provided with pivoted arm ci, having pin c, of the arm c, loosely secured on the shaft, flexible spring-bar c, stop c5, and spring c6, substantially as set forth.

7. The combination, with guide r9, having movement through nipper r2, of lever rl, connecting-bar r, and link a, substantially as set forth.

8. rEhe combination, with nippers r3 and r2, of guide r9, adapted, substantially as shown, to guide the tube to the nippers, substantially as and for the purpose described.

9. The combination, with bar R, provided with the upper nippers, r and r1, of bar R', provided with the lower nippers, r2 and r3, substantially as set forth.

10. The combination, with bar b3, formed with a rack on its central body, tubular bar K', and cam h, formed on fraine A, of gearwheel]c1 and connecting mechanism, substantially as shown, adapted to close the fingers a a, substantially as and for the purpose described.

11. The combination, with sliding rack-bar b3, tubular bar K', and cam h', formed on frame A, of gear-wheel fl and connecting mechanism, substantially as shown, adapted to open the fingers a a, substantially as and for the purpose described.

12. The combination, with sliding bar b3, gear-Wheels f1 f3, shafts f f, and cranks e e', of connecting-rods d d' and sliding sleeves al al, which latter have movement upon bar K', and are, respectively, provided with folding-fingers a a, substantially as set forth.

13. The combination, with sleeves al al, having sliding movement on bar K', and provided with folding-iin gers a a., respectively connected therewith by hinges a2 a2, of connecting-rods d d', cranks e e', shafts f j', and mechanism, substantially as shown, connecting` with said shafts for alternately operating the same in different lines of rotation, substantially as setforth.

14. The combination, with sleeves al al, having sliding movement on tubular bar K', and provided with folding-fingers a a, of bar b3, which slides within said tubular bar, and is adapted, in connection with the engaging mechanism, substantially as shown, to alternately close and open said fingers, substantially as set forth.

15. The combination, with folding-iin gers a a, sliding sleeves al al, connecting-rods d d, cranks e e', and rotating shafts j' f, of gearwheels fl f3, bar b3, provided with rack f2, and suitable cams formed on the frame of the machine, adapted to alternately operate said bar b3 in a reciprocating sliding movement within the tubular bar K', substantially as set forth.

16. The combination, with fingers a a, adapted to have reciprocating movement, as described, and respectively provided with levers b b1, of the casting or center-piece g, provided with stops b4 b5, substantially as set forth.

17. The combination, with bar R, provided with nippers r 1'", and bar R', provided with nippers r2 r3, the same being carried on the revolving head or car I, of the curved wire 18. The combination, with fin gers a a, adapted to have reciprocating movement, as described, and respectively provided with levers b b1, of the casting or center-piece g, having stops b4 b5, and formed with the apron b", substantially as set forth.

19. The combination, with the casting or center-piece g, of the apron b", formed or securely attached thereto, said apron being adapted, substantially as shown, to serve the double purpose of strengthening the head and guiding the paper, substantially as set forth:

20. The combination, with bar b3, rack f2, gears f1 f3, shafts ff, cranks e e', and connecting-rods d d', of sleeves a' al, fingers a a, respectively provided with levers b b1, and casting or center-piece g, provided with stops b4 b4 and b5 b5, substantially as set forth.

2l. The combination, with sh aft M, carrying paste-wheels M2, which are adapted to pass through paste-box M1, and providedwith lock M3, and gear M5, of wheel B, provided with notch M4 and gear M6, substantially as and for the purpose described.

22. The combination, with folder j, hinged at k, and connected by crank 7c3 with .shaft kl, of coarse gear 7a4, secured on end of said shaft, and stationary rack 7c, substantially as set forth.

23. The combination, with folder j, hinged at k, and connected by crank 7c3 with shaft 7c", of gear k7, secured on said shaft, and coarse gears 7c*5 k6, both the latter mounted loosely on bar K', substantially as set forth.

24. The combination, with bar K, adapted, substantially as shown, to be moved in a parallel position to and from bar K', of the serrated cutting-knife G and spring tension-rod F2, adapted to be tripped, substantially as set forth.

25. The combination, with feed-rolls F F1,

27. rlhe combination, with feed-rolls F Fl and cutting-knife Gr, of spring tension-rod F2, lever 905, and bar b3, substantially as set forth. In testimony whereof 1 have signed my naine to this specification in the presence of two subscribing witnesses.

OSCAR W. ALLISON. Witnesses:

JNO. ORowELL, Jr., F. ToUMEY. 

